I was told these should bolt right on my 2000 mxz with no other parts to buy. My flex skis came right off, but the precisions don't seem to want to fit on there. I measured the distance between both skis and thbey seem to be the same. Whats the best method for getting them on. I tried having it on the ground and letting the weight of the sled push it on, I also tried jacking up one side and putting it on.